장윤영 황경엽 2024-01-12T06:01:04Z 2024-01-12T06:01:04Z 2001-06-27 https://pubs.kist.re.kr/handle/201004/79137 유류　및　휘발성　유기화합물로　오염된토양을　정화하기　위한　진공　흡입 생물　반응　장치 Patent 2001-06-27 1998-10-28 0301734 1998-0045379 KO 특허 한국과학기술연구원